ringside seat vs seating

ringside seat and seating both are nouns.

Word	Noun	Adjective	Verb	Adverb
ringside seat	Yes	No	No	No
seating	Yes	No	No	No

As nouns, seating is a hypernym of ringside seat; that is, seating is a word with a broader meaning than ringside seat:

ringside seat: first row of seating; has an unobstructed view of a boxing or wrestling ring
seating: an area that includes places where several people can sit

Other hypernyms of ringside seat include seating area, seating room, seats.

ringside seat (noun)	seating (noun)
first row of seating; has an unobstructed view of a boxing or wrestling ring	the service of ushering people to their seats
	an area that includes places where several people can sit